package com.sky.service.impl;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.context.BaseContext;
import com.sky.dto.*;
import com.sky.entity.*;
import com.sky.exception.AddressBookBusinessException;
import com.sky.exception.OrderBusinessException;
import com.sky.exception.ShoppingCartBusinessException;
import com.sky.mapper.*;
import com.sky.result.PageResult;
import com.sky.service.OrderService;
import com.sky.utils.WeChatPayUtil;
import com.sky.vo.OrderPaymentVO;
import com.sky.vo.OrderStatisticsVO;
import com.sky.vo.OrderSubmitVO;
import com.sky.vo.OrderVO;
import com.sky.websocket.WebSocketServer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.domain.Sort;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.CollectionUtils;

import java.math.BigDecimal;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

@Service
@Slf4j
public class OrderServiceImpl implements OrderService {
    @Autowired
    private OrderMapper orderMapper;
    @Autowired
    private OrderDetailMapper orderDetailMapper;
    @Autowired
    private AddressBookMapper addressBookMapper;
    @Autowired
    private ShoppingCartMapper shoppingCartMapper;
    @Autowired
    private WeChatPayUtil weChatPayUtil;
    @Autowired
    private UserMapper userMapper;
    @Autowired
    private WebSocketServer webSocketServer;


    @Override
    @Transactional
    public OrderSubmitVO submitOrder(OrdersSubmitDTO ordersSubmitDTO) {
        AddressBook addressBook = addressBookMapper.getById(ordersSubmitDTO.getAddressBookId());
        if(addressBook==null)
        {
            throw new AddressBookBusinessException(MessageConstant.ADDRESS_BOOK_IS_NULL);
        }
        Long currentId = BaseContext.getCurrentId();
        ShoppingCart shoppingCart = new ShoppingCart();
        shoppingCart.setUserId(currentId);
        List<ShoppingCart> list = shoppingCartMapper.list(shoppingCart);
        if(list==null||list.size()==0)
        {
            throw new ShoppingCartBusinessException(MessageConstant.SHOPPING_CART_IS_NULL);
        }
        Orders orders = new Orders();
        BeanUtils.copyProperties(ordersSubmitDTO,orders);
        orders.setAddress(addressBook.getDetail());
        orders.setOrderTime(LocalDateTime.now());
        orders.setStatus(Orders.PENDING_PAYMENT);
        orders.setPayStatus(Orders.UN_PAID);
        orders.setNumber(String.valueOf(System.currentTimeMillis()));
        orders.setPhone(addressBook.getPhone());
        orders.setConsignee(addressBook.getConsignee());
        orders.setUserId(currentId);

orderMapper.insert(orders);
List<OrderDetail> orderDetailList=new ArrayList<>();
        for (ShoppingCart cart : list) {
            OrderDetail orderDetail = new OrderDetail();
            BeanUtils.copyProperties(cart,orderDetail);
            orderDetail.setOrderId(orders.getId());
            orderDetailList.add(orderDetail);
        }
        orderDetailMapper.insertBatch(orderDetailList);
        shoppingCartMapper.deleteByUserid(currentId);
        OrderSubmitVO orderSubmitVO = OrderSubmitVO.builder()
                .id(orders.getId())
                .orderTime(orders.getOrderTime())
                .orderNumber(orders.getNumber())
                .orderAmount(orders.getAmount())
                .build();
        return orderSubmitVO;
    }


    /**
     * 订单支付
     *
     * @param ordersPaymentDTO
     * @return
     */
    public OrderPaymentVO payment(OrdersPaymentDTO ordersPaymentDTO) throws Exception {
        // 当前登录用户id
        Long userId = BaseContext.getCurrentId();
        User user = userMapper.getById(userId);

        //调用微信支付接口，生成预支付交易单
//
        JSONObject jsonObject = new JSONObject();

        if (jsonObject.getString("code") != null && jsonObject.getString("code").equals("ORDERPAID")) {
            throw new OrderBusinessException("该订单已支付");
        }

        OrderPaymentVO vo = jsonObject.toJavaObject(OrderPaymentVO.class);
        vo.setPackageStr(jsonObject.getString("package"));

        return vo;
    }

    /**
     * 支付成功，修改订单状态
     *
     * @param outTradeNo
     */
    public void paySuccess(String outTradeNo) {

        // 根据订单号查询订单
        Orders ordersDB = orderMapper.getByNumber(outTradeNo);

        // 根据订单id更新订单的状态、支付方式、支付状态、结账时间
        Orders orders = Orders.builder()
                .id(ordersDB.getId())
                .status(Orders.TO_BE_CONFIRMED)
                .payStatus(Orders.PAID)
                .checkoutTime(LocalDateTime.now())
                .build();

        orderMapper.update(orders);
        Map map=new HashMap();
        map.put("type",1);
        map.put("orderId",ordersDB.getId());
        map.put("content","订单号"+outTradeNo);
        String json = JSON.toJSONString(map);
        webSocketServer.sendToAllClient(json);
    }



    @Override
    public PageResult pageQuery4User(int pageNum, int pageSize, Integer status) {
        PageHelper.startPage(pageNum,pageSize);
        OrdersPageQueryDTO ordersPageQueryDTO = new OrdersPageQueryDTO();
        ordersPageQueryDTO.setUserId(BaseContext.getCurrentId());
        ordersPageQueryDTO.setStatus(status);
        Page<Orders> page=orderMapper.pageQuery(ordersPageQueryDTO);
        List<OrderVO> list=new ArrayList<>();
        if(page!=null&&page.getTotal()>0)
        {
            for (Orders orders : page) {
                Long orderId = orders.getId();
               List<OrderDetail> orderDetails= orderDetailMapper.getByOrderId(orderId);
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                orderVO.setOrderDetailList(orderDetails);

                list.add(orderVO);
            }
        }
        return new PageResult(page.getTotal(), list);
    }
//查看订单详情
    @Override
    public OrderVO details(Long id) {
       Orders orders= orderMapper.getById(id);
      // log.info("订单{}",orders);
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(orders.getId());
        OrderVO orderVO = new OrderVO();
        BeanUtils.copyProperties(orders, orderVO);
        orderVO.setOrderDetailList(orderDetailList);
        //log.info("vo{}",orderVO);
        return orderVO;
    }
//取消订单
    @Override
    public void userCancelById(Long id) throws Exception{
        Orders ordersDB = orderMapper.getById(id);
        if(ordersDB==null)
        {
            throw new OrderBusinessException(MessageConstant.ORDER_NOT_FOUND);
        }
        if(ordersDB.getStatus()>2)
        {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders=new Orders();
        orders.setId(ordersDB.getId());
//        if(ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED))
//        {
//            weChatPayUtil.refund(
//                    ordersDB.getNumber(),
//                    ordersDB.getNumber(),
//                    new BigDecimal(0),//退款金额，单位 元
//                    new BigDecimal(0));
//            orders.setPayStatus(Orders.REFUND);
//        }
        orders.setPayStatus(Orders.REFUND);
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason("用户取消");
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }
//再来一单
    @Override
    public void repetition(Long id) {
        Long userId = BaseContext.getCurrentId();
        List<OrderDetail> orderDetailList = orderDetailMapper.getByOrderId(id);
List<ShoppingCart> shoppingCartList=orderDetailList.stream().map(x->{
    ShoppingCart shoppingCart=new ShoppingCart();
    BeanUtils.copyProperties(x, shoppingCart, "id");
    shoppingCart.setUserId(userId);
    shoppingCart.setCreateTime(LocalDateTime.now());

    return shoppingCart;
}).collect(Collectors.toList());
shoppingCartMapper.insertBatch(shoppingCartList);
    }
//订单搜素
    @Override
    public PageResult conditionSearch(OrdersPageQueryDTO ordersPageQueryDTO) {
        PageHelper.startPage(ordersPageQueryDTO.getPage(),ordersPageQueryDTO.getPageSize());
        Page<Orders> page=orderMapper.pageQuery(ordersPageQueryDTO);
        log.info("page1{}",page);
        List<OrderVO> orderVOList=getOrderVoList(page);
        log.info("orderVOList1{}",orderVOList);
        return new PageResult(page.getTotal(),orderVOList);
    }

    private List<OrderVO> getOrderVoList(Page<Orders> page) {
        List<OrderVO> orderVOList = new ArrayList<>();
        List<Orders> ordersList = page.getResult();
       // log.info("orderslist{}", ordersList);
        if (!CollectionUtils.isEmpty(ordersList)) {
            for (Orders orders : ordersList) {
                OrderVO orderVO = new OrderVO();
                BeanUtils.copyProperties(orders, orderVO);
                //log.info("ordervo{}", orderVO);
                String orderDishes = getOrderDishesStr(orders);
                //log.info("orderDishes{}", orderDishes);
                orderVO.setOrderDishes(orderDishes);
               orderVOList.add(orderVO);
                //log.info("orderlist2{}", ordersList);
            }

        }
        return orderVOList;
    }

    private String getOrderDishesStr(Orders orders) {
        List<OrderDetail> orderDetailList =orderDetailMapper.getByOrderId(orders.getId());
      //  log.info("orderdetaillist{}",orderDetailList);
        List<String> orderDishList = orderDetailList.stream().map(x -> {
            String orderDish = x.getName() + "*" + x.getNumber() + ";";
            //log.info("orderdish{}",orderDish);
            return orderDish;
        }).collect(Collectors.toList());
       // log.info("orderdishlist{}",orderDetailList);
        return String.join("",orderDishList);
    }


    @Override
    public OrderStatisticsVO statistics() {
      Integer toBeConfirmed= orderMapper.countStatus(Orders.TO_BE_CONFIRMED);
      Integer confirmed = orderMapper.countStatus(Orders.CONFIRMED);
      Integer deliveryInProgress = orderMapper.countStatus(Orders.DELIVERY_IN_PROGRESS);
      OrderStatisticsVO orderStatisticsVO=new OrderStatisticsVO();
      orderStatisticsVO.setConfirmed(confirmed);
        orderStatisticsVO.setDeliveryInProgress(deliveryInProgress);
        orderStatisticsVO.setToBeConfirmed(toBeConfirmed);
        return orderStatisticsVO;
    }

    @Override
    public void confirm(OrdersConfirmDTO ordersConfirmDTO) {
        Orders orders=Orders.builder()
                .id(ordersConfirmDTO.getId())
                .status(Orders.CONFIRMED)
                .build();
        orderMapper.update(orders);

    }

    @Override
    public void rejection(OrdersRejectionDTO ordersRejectionDTO) {
        Orders ordersDB=orderMapper.getById(ordersRejectionDTO.getId());
        if(ordersDB==null||!ordersDB.getStatus().equals(Orders.TO_BE_CONFIRMED))
        {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders=Orders.builder()
                .id(ordersRejectionDTO.getId())
                .status(Orders.CANCELLED)
                .rejectionReason(ordersRejectionDTO.getRejectionReason())
                .cancelTime(LocalDateTime.now())
                .build();
        orderMapper.update(orders);
    }

    @Override
    public void cancel(OrdersCancelDTO ordersCancelDTO) {
        Orders orders = new Orders();
        orders.setId(ordersCancelDTO.getId());
        orders.setStatus(Orders.CANCELLED);
        orders.setCancelReason(ordersCancelDTO.getCancelReason());
        orders.setCancelTime(LocalDateTime.now());
        orderMapper.update(orders);
    }

    @Override
    public void delivery(Long id) {
        Orders orderDB = orderMapper.getById(id);
        if (orderDB==null||!orderDB.getStatus().equals(Orders.CONFIRMED))
        {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders= Orders.builder()
                .status(Orders.DELIVERY_IN_PROGRESS)
                .id(id)
                .build();
        orderMapper.update(orders);
    }

    @Override
    public void complete(Long id) {
        Orders orderDB = orderMapper.getById(id);
        if (orderDB==null||!orderDB.getStatus().equals(Orders.DELIVERY_IN_PROGRESS))
        {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Orders orders=Orders.builder()
                .status(Orders.COMPLETED)
                .deliveryTime(LocalDateTime.now())
                .id(id)
                .build();
        orderMapper.update(orders);

    }


    //订单搜素

    /**
     * 客户催单实现
     * @param id
     */
    @Override
    public void reminder(Long id) {
        Orders orderDB = orderMapper.getById(id);

        if(orderDB==null)
        {
            throw new OrderBusinessException(MessageConstant.ORDER_STATUS_ERROR);
        }
        Map map=new HashMap();
        map.put("type",2);
        map.put("orderId",id);
        map.put("content","订单号"+orderDB.getNumber());

        webSocketServer.sendToAllClient(JSON.toJSONString(map));
    }
}
